A jewelry manufacturer is creating a routine order schedule for some new products: J66 and J67.  J66 can be ordered any time.  J67 is set up to be ordered every 4 weeks.  The company is closed 2 weeks out of a 52 week year otherwise it is open. Given the following, show me the calculation (I have provided the final answer) the questions at the end: J66 acceptable stockout risk = 2.5%, lead time = 2 weeks, ordering cost =$70, annual holding cost = 30%, unit cost =$15, standard deviation = 4 units per week, and average weekly demand is 60 units. J67 acceptable  stockout risk = 2.5%, lead time = 2 weeks, ordering cost =$30, annual holding cost = 30%, unit cost =$20, standard deviation = 5 units per week, and average weekly demand is 70  units.  I know the reorder point for j67 is 153 units on hand.  1) Show me the math to come up with the 153 units answer. 2) What is the reorder point for the J66? (I know the answer is 306 units so show me the calculation), 3) If the J67 has 110 units on hand, what is the order quantity (I know the answer is 334 units), please show me the calculation?

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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A jewelry manufacturer is creating a routine order schedule for some new products: J66 and J67.  J66 can be ordered any time.  J67 is set up to be ordered every 4 weeks.  The company is closed 2 weeks out of a 52 week year otherwise it is open. Given the following, show me the calculation (I have provided the final answer) the questions at the end: J66 acceptable stockout risk = 2.5%, lead time = 2 weeks, ordering cost =$70, annual holding cost = 30%, unit cost =$15, standard deviation = 4 units per week, and average weekly demand is 60 units. J67 acceptable  stockout risk = 2.5%, lead time = 2 weeks, ordering cost =$30, annual holding cost = 30%, unit cost =$20, standard deviation = 5 units per week, and average weekly demand is 70  units.  I know the reorder point for j67 is 153 units on hand.  1) Show me the math to come up with the 153 units answer. 2) What is the reorder point for the J66? (I know the answer is 306 units so show me the calculation), 3) If the J67 has 110 units on hand, what is the order quantity (I know the answer is 334 units), please show me the calculation?

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